{"id":2888,"date":"2025-10-12T02:33:25","date_gmt":"2025-10-12T02:33:25","guid":{"rendered":"https:\/\/am-printing.com\/?p=2888"},"modified":"2025-09-29T02:47:55","modified_gmt":"2025-09-29T02:47:55","slug":"laser-ded-process-of-inconel-718-alloy-powder","status":"publish","type":"post","link":"https:\/\/am-printing.com\/de\/laser-ded-process-of-inconel-718-alloy-powder\/","title":{"rendered":"Laser-DED Process of Inconel 718 Alloy Powder"},"content":{"rendered":"

Laser-DED Process of Inconel 718 Alloy Powder<\/strong><\/h1>\n\n\n\n

Compared with wire feed materials, Inconel 718 alloy powder provides superior material utilization and cost-effectiveness. Its feeding rate is faster, and when paired with the laser\u2019s high energy density, it greatly improves deposition efficiency. Through layer-by-layer buildup, this approach allows flexible manufacturing of complex metal parts, breaking through the geometric constraints of traditional subtractive methods.<\/p>\n\n\n\n

By dynamically adjusting the laser power and incorporating a coaxial infrared pyrometer, it becomes possible to realize closed-loop monitoring of the melt pool temperature, providing excellent potential for precise and adaptive thermal control.<\/p>\n\n\n\n

Experimental Setup:<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

However, this technology also faces notable challenges in practice. Multi-layer deposition tends to cause heat accumulation, which can enlarge the melt pool, increase vertical dimensional deviation, porosity, and grain coarsening.<\/p>\n\n\n\n

The repetitive scanning paths further amplify thermal gradient fluctuations, resulting in spattering and balling, thus reducing structural uniformity.<\/p>\n\n\n\n

Morphology of gas atomized Inconel 718 powder:<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

It can be observed that there are some Satellite and agglomerated particles from gas atomized Inconel 718 powder.<\/p>\n\n\n\n

Irregular melt paths and <\/strong>rough surface morphology deposited by gas atomized Inconel 718 powder:<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Morphology of PREP Inconel 718 powder:<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

It can be observed that there are not any Satellite and agglomerated particles from PREP Inconel 718 powder.<\/p>\n\n\n\n

By changing the Inconel 718 powder from gas atomized type to PREP type, the vertical dimensional deviation was reduced greatly by 85% and improved structural uniformity by 98% due to more uniform particle size and more sphericity of PREP powder to stabilize the melt pool dynamics.<\/p>\n\n\n\n

And the DED parts by PREP Inconel 718 powders have least defects and discontinuities due to almost zero hollow and satellite powders of PREP powder.<\/p>\n\n\n\n

Surface morphology deposited by PREP Inconel 718 powder:<\/strong><\/p>\n\n\n\n

\"\"<\/figure>","protected":false},"excerpt":{"rendered":"

Laser-DED Process of Inconel 718 Alloy Powder Compared with wire feed materials, Inconel 718 alloy powder provides superior material utilization and cost-effectiveness. Its feeding rate is faster, and when paired with the laser\u2019s high energy density, it greatly improves deposition efficiency. Through layer-by-layer buildup, this approach allows flexible manufacturing of complex metal parts, breaking through […]<\/p>\n","protected":false},"author":4,"featured_media":2890,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/posts\/2888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/comments?post=2888"}],"version-history":[{"count":2,"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/posts\/2888\/revisions"}],"predecessor-version":[{"id":2895,"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/posts\/2888\/revisions\/2895"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/media\/2890"}],"wp:attachment":[{"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/media?parent=2888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/categories?post=2888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/am-printing.com\/de\/wp-json\/wp\/v2\/tags?post=2888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}